//
//  DLVisitorView.swift
//  新浪微博
//
//  Created by 周冰烽 on 2017/1/6.
//  Copyright © 2017年 周冰烽. All rights reserved.
//

import UIKit

class DLVisitorView: UIView {
    ///访客视图的信息字典 [imageName/message]
    ///如果是首页 imageName == ""
    var visitorInfo:[String :String]? {
        didSet{
            //1>取字典信息
            guard let imageName = visitorInfo?["imageName"] else {
                return
            }
            guard let message = visitorInfo?["message"] else {
                return
            }
            //2>设置消息
            tipIconView.text = message
            //3>设置图像
            if imageName == "" {
                startAnimaion()
                return
            }
            iconView.image = UIImage(named: imageName)
            // 其他控制器的访客视图不需要显示小房子/遮罩视图
            houseIconView.isHidden = true
            maskIconView.isHidden = true
        }
    }
    
    
    // MARK: - 构造函数
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    /// 旋转图标动画
    fileprivate func startAnimaion() {
        let animation = CABasicAnimation(keyPath: "transform.rotation")
        animation.toValue = 2 * M_PI
        animation.repeatCount = MAXFLOAT
        animation.duration = 15
        //动画完成不删除,如果 iconView 被释放,动画会一起销毁
        //在设置连续播放的动画非常有效
        animation.isRemovedOnCompletion = false
        //将动画添加到图层
        iconView.layer.add(animation, forKey: nil)
    }
    
    
    // MARK: - 设置访客视图信息
    /// 使用字典设置访客视图信息
    ///
    /// - Parameter dict: [imageName/message]
    /// 提示:如果是首页 imageName == ""
    func setupInfo(dict:[String:String]) {
        
    }
    
    
    //MARK: - 私有控件
    //懒加载属性只有调用UIKit 控件的指定构造函数,其他都需要使用类型
    /// 图像视图
    fileprivate lazy var iconView:UIImageView = UIImageView(image: UIImage(named:"visitordiscover_feed_image_smallicon"))
    /// 遮罩图像 - 不要使用maskView
    fileprivate lazy var maskIconView:UIImageView = UIImageView(image: UIImage(named:"visitordiscover_feed_mask_smallicon"))
    /// 小房子
    fileprivate lazy var houseIconView:UIImageView = UIImageView(image: UIImage(named:"visitordiscover_feed_image_house"))
    /// 提示标签
    fileprivate lazy var tipIconView:UILabel = UILabel.cz_label(
        withText: "关注一些人,回这里看看有什么惊喜",
        fontSize: 14,
        color: UIColor.darkGray)
    /// 注册按钮
    fileprivate lazy var registerButton:UIButton = UIButton.cz_textButton(
        "注册",
        fontSize: 16,
        normalColor: UIColor.orange,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")
    /// 登录按钮
    fileprivate lazy var loginButton:UIButton = UIButton.cz_textButton(
        "登录",
        fontSize: 16,
        normalColor: UIColor.darkGray,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")
    
}

extension DLVisitorView {
    
    /// 设置界面
    func setupUI() {
        //0.在开发的时候,如果能够使用颜色,就不要使用图像
        backgroundColor = UIColor.cz_color(withHex: 0xEDEDED)
        //1.添加控件
        addSubview(iconView)
        addSubview(maskIconView)
        addSubview(houseIconView)
        addSubview(tipIconView)
        addSubview(registerButton)
        addSubview(loginButton)
        //文本居中
        tipIconView.textAlignment = .center
        //2.取消autoresizing
        for v in subviews {
            v.translatesAutoresizingMaskIntoConstraints = false
        }
        //3.自动布局
        let margin:CGFloat = 20
        
        //1>图像视图
        addConstraint(NSLayoutConstraint(item: iconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: self,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: iconView,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: self,
                                         attribute: .centerY,
                                         multiplier: 1.0,
                                         constant: -60))
        //2>小房子
        addConstraint(NSLayoutConstraint(item: houseIconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: houseIconView,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerY,
                                         multiplier: 1.0,
                                         constant: 0))
        //3>提示标签
        addConstraint(NSLayoutConstraint(item: tipIconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: tipIconView,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: tipIconView,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 236))
        //4>注册按钮
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .left,
                                         relatedBy: .equal,
                                         toItem: tipIconView,
                                         attribute: .left,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipIconView,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 100))
        //5>登录按钮
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .right,
                                         relatedBy: .equal,
                                         toItem: tipIconView,
                                         attribute: .right,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipIconView,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 100))
        //6>遮罩图像
        // views:定义 VFL 中的控件名称和实际名称映射关系
        // metrics:定义 VFL 中()指定的常数映射关系
        let viewDict = ["maskIconView": maskIconView,
                        "registerButton": registerButton] as [String : Any]
        let metrics = ["spacing":-35]
        
        addConstraints(NSLayoutConstraint.constraints(
            withVisualFormat: "H:|-0-[maskIconView]-0-|",
            options: [],
            metrics: nil,
            views: viewDict))
        addConstraints(NSLayoutConstraint.constraints(
            withVisualFormat: "V:|-0-[maskIconView]-(spacing)-[registerButton]",
            options: [],
            metrics: metrics,
            views: viewDict))
        
        
    }
}
















